what is the defination of accuracy & presicion?

8 Answers   Amneal Pharmaceuticals, GSK,

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How to select buffer for HPLC mobile phase

4 Answers   Cadila, Cipla, Lupin,

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How to know HPLC column performance?

4 Answers   Meghmani Organics,

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what is the use of performing tapped density in pharmaceutical industry

1 Answers  

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what type of questions asked on analytical balance and also give answers................all pharma companies?

1 Answers   Sun Pharma,

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In lcms analysis some times we get sodium and potassium adducts. if the compound is havine sodium ions how can we confirm wether sodium is from sample or it is a adduct?

2 Answers   Teva Pharmaceuticals,

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why using factor 1.00639 in burette calibration of kf

1 Answers   Cipla,

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What is viod volume and peak purity in HPLC?

0 Answers  

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My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards

0 Answers  

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WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?

0 Answers   GVK,

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What is Formula of Potency calculation on Dried basis, As is basis& Anhydrous basis.

11 Answers   Laurus, Teva API,

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what is pK & pKa value

3 Answers  

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